Quantitative feeding mechanism for iminodiacetic acid

Abstract

The utility model discloses a quantitative feeding mechanism for iminodiacetic acid, and belongs to the technical field of iminodiacetic acid production. A quantitative feeding mechanism for iminodiacetic acid comprises a base and a weighing assembly installed on the base, and further comprises a feeding box fixedly installed on the base, a hopper used for feeding is fixedly communicated with the feeding box, and a discharging area is formed at the communication position of the feeding box and the hopper; according to the device disclosed by the utility model, clotted iminodiacetic acid is cut through the rhombic tip and is scattered under the action of centrifugal force, the scattered iminodiacetic acid is accumulated at the inlet of the blanking area, and the accumulated iminodiacetic acid is loosened by the stirring part extending out of the scraping plate, so that the iminodiacetic acid can fall down; compared with the prior art, the device has the advantages that the scattering of iminodiacetic acid clots is effectively realized, the condition that the interior of equipment is blocked due to the clotted iminodiacetic acid is reduced, the production efficiency is further improved, the maintenance cost of the equipment is reduced, and the quantification precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of iminodiacetic acid production technology, and in particular to a quantitative feeding mechanism for iminodiacetic acid. Background Technology

[0002] Iminodiacetic acid (IDA), as an important organic compound, contains amino and carboxyl functional groups in its molecular structure, which endow it with the property of reacting with acids and bases to form corresponding salts, and can form stable chelates with a variety of metal ions.

[0003] In the field of pesticide synthesis, this compound is a key intermediate for the preparation of the broad-spectrum herbicide glyphosate. The precise control of its content is directly related to the yield and purity of glyphosate synthesis. If the IDA content in the raw materials is not properly controlled during the production process, it will not only lead to insufficient glyphosate synthesis reaction and affect the yield, but may also cause product quality to be unqualified due to raw material residues or excessive impurities, which will have an adverse impact on subsequent product testing and market application.

[0004] Existing technologies present certain problems. Because iminodiacetic acid is a white crystalline powder, it easily forms agglomerates of varying sizes during feeding and transport due to factors such as electrostatic interactions between particles, hygroscopicity, and mechanical compression. Current logarithmic separation devices are inefficient at dispersing these agglomerates. On the one hand, this results in the material entering the quantitative feeding stage still containing incompletely dispersed clumps, leading to mass errors during quantitative weighing and affecting the accuracy of material proportioning in subsequent chemical reactions. On the other hand, larger clumps may cause blockages in conveying pipelines, metering instruments, and other equipment, resulting in production interruptions, significantly reducing production efficiency, and increasing equipment maintenance costs. Therefore, we urgently need a quantitative feeding mechanism for iminodiacetic acid to solve these problems. Utility Model Content

[0005] The purpose of this invention is to solve the problems of agglomeration and blockage during the feeding of iminodiacetic acid in the prior art, and to propose a quantitative feeding mechanism for iminodiacetic acid.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A quantitative feeding mechanism for iminodiacetic acid includes a base and a weighing component mounted on the base, and further includes: a feeding box fixedly mounted on the base, a hopper for feeding is fixedly connected to the feeding box, the connection between the feeding box and the hopper forms a discharge area, at least four component feeding plates for quantitative feeding are rotatably connected inside the feeding box, and a rotating rod is rotatably connected inside the hopper, and a stirring part for agitating agglomerated iminodiacetic acid is provided on the rotating rod.

[0008] To break up agglomerated iminodiacetic acid, preferably, the stirring section includes at least two sets of crossbars fixedly connected to the rotating rod. The crossbars are arranged in a ring with equal spacing around the axis of the rotating rod. At least two sets of scrapers that abut against the inner wall of the hopper are fixedly connected to the crossbars. The ends of the scrapers extend inward to form a deflecting part, which is located in the feeding area. When the scrapers rotate, the deflecting part rotates accordingly and forms a loosening area. Multiple sets of separating rods are fixedly connected to the crossbars. The multiple sets of separating rods are arranged in a decreasing array along the radial length of the crossbars. When the rotating rod rotates, the separating rods on the crossbars rotate accordingly and form a breaking up area.

[0009] To further improve the dispersing effect, the cross-sectional shape of the separating rod is rhomboid.

[0010] For quantitative material discharge, preferably, a variable speed motor is fixedly connected to the feeding box, and the output end of the variable speed motor extends inward and is fixedly connected to a rotating drum. Multiple sets of material distribution plates are arranged in a ring at equal intervals on the rotating drum, and a receiving area is formed between two sets of adjacent material distribution plates. When the variable speed motor is working, the rotating drum and the material distribution plates rotate.

[0011] To enable the rotating rod to rotate, preferably, an end cover is detachably installed on the hopper, and a geared motor is fixedly connected to the end cover. The output end of the geared motor passes inward and is fixedly connected to the end of the rotating rod. When the geared motor is working, the crossbar and scraper on the rotating rod rotate.

[0012] To facilitate material feeding, the end cap is further provided with a feed pipe for connection to an external pipeline.

[0013] In order to enable material discharge, preferably, the feeding box is provided with a discharge pipe for discharging material, and a baffle for blocking the material discharge is slidably connected to the discharge pipe.

[0014] Compared with the prior art, the present invention provides a quantitative feeding mechanism for iminodiacetic acid, which has the following beneficial effects:

[0015] 1. This quantitative feeding mechanism for iminodiacetic acid (IDA) utilizes a hopper. When IDA enters the hopper through the feed pipe, a geared motor drives a rotating rod to rotate. As the rod rotates, a scraper follows the inner wall of the hopper, preventing material from sticking to the inner wall. A separating rod on the crossbar contacts and separates IDA. When encountering clumps of IDA, a diamond-shaped tip cuts the clumps, and centrifugal force further breaks them up. The broken IDA accumulates at the inlet of the discharge area, where a prying part extending from the scraper loosens the accumulated IDA, allowing it to fall downwards. This effectively breaks up clumps of IDA, reduces internal blockages caused by clumped IDA, further improves production efficiency, reduces equipment maintenance costs, and enhances quantitative accuracy.

[0016] 2. This quantitative feeding mechanism for iminodiacetic acid (IDA) utilizes a feeding box. When IDA enters the receiving area formed by two component feeding plates, a variable-speed motor drives a rotating drum. As the drum rotates, the two feeding plates carrying IDA move out of the feeding area and abut against the inner wall of the feeding box, completing the quantitative feeding of this receiving area. When the drum rotates and moves the two feeding plates to the discharge pipe position, due to the open design at the ends of the two feeding plates, the IDA falls downward through the discharge pipe and into the receiving box on the weighing assembly for weighing. It should be noted that when the variable-speed motor rotates at a faster speed, the weight of IDA in the receiving area is smaller, and conversely, when the variable-speed motor rotates at a slower speed, the weight of IDA in the receiving area is larger. This effectively controls the weight of IDA, improves quantitative accuracy, and further enhances work efficiency.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This invention solves the quantitative deviation and equipment blockage problems existing in the prior art, improves the accuracy of iminodiacetic acid quantification, and further improves production and processing efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a quantitative feeding mechanism for iminodiacetic acid proposed in this utility model;

[0019] Figure 2 This is a partial cross-sectional view of a quantitative feeding mechanism for iminodiacetic acid proposed in this utility model. Figure 1 ;

[0020] Figure 3 This is a partial cross-sectional view of a quantitative feeding mechanism for iminodiacetic acid proposed in this utility model. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the scraper and separating rod structure of a quantitative feeding mechanism for iminodiacetic acid proposed in this utility model.

[0022] In the diagram: 1. Base; 2. Weighing assembly; 3. Feeding box; 4. Hopper; 5. Dividing plate; 6. Rotating rod; 7. Crossbar; 8. Scraper; 9. Separating rod; 10. Variable speed motor; 11. Rotary drum; 12. End cover; 13. Gear motor; 14. Feed pipe; 15. Discharge pipe; 16. Baffle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0025] Reference Figures 1-4A quantitative feeding mechanism for iminodiacetic acid includes a base 1 and a weighing component 2 mounted on the base 1. The weighing component 2 mainly consists of a weighing sensor, a weighing transmitter, and display and control instruments, integrated with a weighing platform and fixing device. The operator needs to place the receiving bucket on the weighing platform to observe the values; this is a conventional technical solution and will not be elaborated upon here. The mechanism also includes a feeding box 3 fixedly mounted on the base 1, with a hopper 4 fixedly connected to the feeding box 3. The connection between the feeding box 3 and the hopper 4 forms a discharge area. A discharge pipe 15 is provided on the feeding box 3 for discharging, and a baffle 16 is slidably connected to the discharge pipe 15 to block the discharge. An end cap 12 is detachably mounted on the hopper 4. The feed pipe 14 is fixedly connected to the upper part for connection with external pipelines. Here, the feed box 3 and the hopper 4 are fixed together by flange and bolts. The discharge area is the necessary channel for the iminodiacetic acid in the hopper 4 to be discharged into the feed box 3. The baffle 16 is a pull-out design. When the equipment is running, the baffle 16 is in the open state. When the equipment is stopped, the baffle 16 is in the closed state. The iminodiacetic acid enters the hopper 4 through the feed pipe 14. After being dispersed, it is discharged into the feed box 3 through the discharge area. Finally, it is discharged into the receiving box placed on the weighing component 2 by the discharge pipe 15. The weighing sensor on the weighing component 2 detects the iminodiacetic acid, thereby quantifying the iminodiacetic acid, realizing the quantitative process of iminodiacetic acid and improving the accuracy of the quantitative value.

[0026] At least four groups of dispensing plates 5 for quantitative dispensing are rotatably connected inside the feeding box 3. A variable speed motor 10 is fixedly connected to the feeding box 3. The output end of the variable speed motor 10 extends inward and is fixedly connected to a rotating drum 11. The dispensing plates 5 are arranged in a ring at equal intervals on the rotating drum 11. A receiving area is formed between two adjacent dispensing plates 5. When the variable speed motor 10 is working, the rotating drum 11 and the dispensing plates 5 rotate. Here, when iminodiacetic acid enters the receiving area formed by the two dispensing plates 5, the variable speed motor 10 drives the rotating drum 11 to rotate. When the rotating drum 11 rotates, the two dispensing plates 5 containing iminodiacetic acid will move out of the feeding area and close to the inner wall of the feeding box 3. The quantitative measurement of the receiving area at this position is completed. When the rotating drum 11 rotates and moves the two distributing plates 5 to the position of the discharge pipe 15, due to the open design at the ends of the two distributing plates 5, iminodiacetic acid falls down out of the discharge pipe 15 and enters the receiving box on the weighing assembly 2 for weighing. It should be noted that when the speed of the variable speed motor 10 is faster, the weight of iminodiacetic acid in the receiving area is smaller, and conversely, when the speed of the variable speed motor 10 is slower, the weight of iminodiacetic acid in the receiving area is larger. This effectively controls the weight of iminodiacetic acid, improves the quantitative accuracy, and further improves the work efficiency.

[0027] It should be noted that the variable speed motor 10 is preferably a Siemens 1LE0 series model with a power range of 0.55-400kW, an IP55 protection rating, and is compatible with Sinamics frequency converters. It supports vector control and achieves wide-range speed regulation by adjusting the power supply frequency through the frequency converter. It is suitable for this weighing equipment, and the variable speed motor 10 is electrically connected to an external power supply control device.

[0028] A rotating rod 6 is rotatably connected inside the hopper 4, and a stirring part for agitating the agglomerated iminodiacetic acid is provided on the rotating rod 6. A reduction motor 13 is fixedly connected to the end cap 12, and the output end of the reduction motor 13 extends inward and is fixedly connected to the end of the rotating rod 6. The stirring part includes at least two sets of crossbars 7 fixedly connected to the rotating rod 6. The crossbars 7 are arranged in a ring with equal spacing around the axis of the rotating rod 6. At least two sets of scrapers 8 are fixedly connected to the crossbars 7 and abut against the inner wall of the hopper 4. The ends of the scrapers 8 extend inward to form a stirring part, which is located in the feeding area. When the scrapers 8 rotate, the stirring part rotates accordingly and forms a loosening area. Multiple sets of separating rods 9 are fixedly connected to the crossbars 7. The multiple sets of separating rods 9 are arranged in an array with decreasing radial length along the crossbars 7. The cross-sectional shape of the separating rods 9 is rhomboid. When the rotating rod 6 rotates, the separating rods 9 on the crossbars 7 rotate accordingly and form a dispersing area. When iminodiacetic acid enters the hopper 4 through the feed pipe 14, the geared motor 13 drives the rotating rod 6 to rotate. When the rotating rod 6 rotates, the scraper 8 rotates along the inner wall of the hopper 4 to avoid sticking to the inner wall. The separating rod 9 on the crossbar 7 contacts the iminodiacetic acid for separation. When encountering clumps of iminodiacetic acid, the rhomboid tip cuts the clumps and breaks them up under the action of centrifugal force. The broken iminodiacetic acid accumulates at the inlet of the feeding area. The agitator extending from the scraper 8 loosens the accumulated iminodiacetic acid so that it can fall downwards. This effectively breaks up the clumps of iminodiacetic acid and reduces the internal blockage of the equipment caused by the clumps of iminodiacetic acid, further improving production efficiency, reducing equipment maintenance costs, and improving quantitative accuracy.

[0029] It should be noted that the geared motor 13 adopts Siemens G series, such as G120 / G130 series, with a power range of 0.12-315kW, speed ratio of 5-1000, IP55 protection rating, and is compatible with frequency converter to achieve dynamic speed regulation. It achieves speed reduction and torque increase through gear transmission to drive the rotating rod 6 to rotate. The geared motor 13 is electrically connected to external power supply control equipment.

[0030] In this invention, after the operator connects the external conveying pipe to the feed pipe 14, iminodiacetic acid is discharged into the hopper 4. At this time, the reduction motor 13 starts, driving the rotating rod 6 to rotate. When the rotating rod 6 rotates, the scraper 8 rotates along the inner wall of the hopper 4 to avoid sticking to the inner wall. The separating rod 9 on the crossbar 7 contacts the iminodiacetic acid for separation. When encountering clumps of iminodiacetic acid, the rhomboid tip cuts the clumps and breaks them up under centrifugal force. The broken iminodiacetic acid accumulates at the inlet of the feeding area, and is discharged from the scraper 8. The agitator loosens the accumulated iminodiacetic acid, allowing it to fall downwards. When the iminodiacetic acid enters the feeding box 3, the variable speed motor 10 drives the rotating drum 11 to rotate. When the rotating drum 11 rotates, the two distributing plates 5 containing iminodiacetic acid move out of the feeding area and abut against the inner wall of the feeding box 3, completing the quantitative measurement of the receiving area at this position. After the rotating drum 11 rotates and moves the two distributing plates 5 to the position of the discharge pipe 15, due to the open design at the ends of the two distributing plates 5, the iminodiacetic acid falls downwards out of the discharge pipe 15 and enters the receiving box on the weighing assembly 2 for weighing.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quantitative feeding mechanism for iminodiacetic acid, comprising a base (1) and a weighing component (2) mounted on the base (1), characterized in that, Also includes: A feeding box (3) is fixedly installed on a base (1), and a hopper (4) for feeding is fixedly connected to the feeding box (3). The connection between the feeding box (3) and the hopper (4) forms a feeding area. The feed box (3) is rotatably connected to at least four component feeding plates (5) for quantitative feeding, and the hopper (4) is rotatably connected to a rotating rod (6), and the rotating rod (6) is provided with a stirring part for stirring the agglomerated iminodiacetic acid.

2. The quantitative feeding mechanism for iminodiacetic acid according to claim 1, characterized in that, The stirring section includes at least two sets of crossbars (7) fixedly connected to the rotating rod (6), the crossbars (7) being arranged in a ring at equal intervals around the axis of the rotating rod (6). Among them, at least two sets of scrapers (8) that abut against the inner wall of the hopper (4) are fixedly connected to the crossbar (7). The ends of the scrapers (8) extend inward to form a pushing part. The pushing part is located in the feeding area. When the scraper (8) rotates, the pushing part rotates and forms a loosening area. Multiple sets of separation rods (9) are fixedly connected to the crossbar (7). The multiple sets of separation rods (9) are arranged in a decreasing array along the radial length of the crossbar (7). When the rotating rod (6) rotates, the separation rods (9) on the crossbar (7) rotate and form a dispersing area.

3. The quantitative feeding mechanism for iminodiacetic acid according to claim 2, characterized in that, The cross-sectional shape of the separating rod (9) is rhomboid.

4. The quantitative feeding mechanism for iminodiacetic acid according to claim 1, characterized in that, A variable speed motor (10) is fixedly connected to the feed box (3). The output end of the variable speed motor (10) extends inward and is fixedly connected to a rotating drum (11). Multiple sets of material distribution plates (5) are arranged in a ring at equal intervals on the rotating drum (11). A receiving area is formed between two sets of adjacent material distribution plates (5). When the variable speed motor (10) is working, the rotating drum (11) and the material distribution plates (5) rotate.

5. A quantitative feeding mechanism for iminodiacetic acid according to claim 1, characterized in that, An end cover (12) is detached and installed on the hopper (4). A reduction motor (13) is fixedly connected to the end cover (12). The output end of the reduction motor (13) passes inward and is fixedly connected to the end of the rotating rod (6). When the reduction motor (13) works, the crossbar (7) and scraper (8) on the rotating rod (6) rotate.

6. A quantitative feeding mechanism for iminodiacetic acid according to claim 5, characterized in that, The end cap (12) is fixedly connected to an inlet pipe (14) for connection with an external pipeline.

7. The quantitative feeding mechanism for iminodiacetic acid according to claim 1, characterized in that, The feed box (3) is provided with a discharge pipe (15) for discharging material, and a baffle (16) for blocking the material from falling is slidably connected on the discharge pipe (15).

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